[css-align] Don't resolve 'auto' values for computed style.

third_party/WebKit/Source/core/layout/LayoutBox.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc.
  *               All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 2865 matching lines @@
   if (!style.LogicalWidth().IsAuto() || style.MarginStart().IsAuto() ||
       style.MarginEnd().IsAuto())
     return false;
   LayoutBlock* cb = ContainingBlock();
   if (!cb) {
     // We are evaluating align-self/justify-self, which default to 'normal' for
     // the root element. The 'normal' value behaves like 'start' except for
     // Flexbox Items, which obviously should have a container.
     return false;
   }
-  const ComputedStyle* parent_style = IsAnonymous() ? cb->Style() : nullptr;
   if (cb->IsHorizontalWritingMode() != IsHorizontalWritingMode())
     return style
                .ResolvedAlignSelf(cb->SelfAlignmentNormalBehavior(this),
-                                  parent_style)
+                                  cb->Style())
                .GetPosition() == kItemPositionStretch;
   return style
              .ResolvedJustifySelf(cb->SelfAlignmentNormalBehavior(this),
-                                  parent_style)
+                                  cb->Style())
              .GetPosition() == kItemPositionStretch;
 }
 
 bool LayoutBox::SizesLogicalWidthToFitContent(
     const Length& logical_width) const {
   if (IsFloating() || IsInlineBlockOrInlineTable() ||
       StyleRef().HasOutOfFlowPosition())
     return true;
 
   if (IsGridItem())
@@ skipping 2988 matching lines @@
 void LayoutBox::MutableForPainting::
     SavePreviousContentBoxSizeAndLayoutOverflowRect() {
   auto& rare_data = GetLayoutBox().EnsureRareData();
   rare_data.has_previous_content_box_size_and_layout_overflow_rect_ = true;
   rare_data.previous_content_box_size_ = GetLayoutBox().ContentBoxRect().Size();
   rare_data.previous_layout_overflow_rect_ =
       GetLayoutBox().LayoutOverflowRect();
 }
 
 }  // namespace blink